Babies Height Weight Chart. These show the average weight and height gain for babies of different ages. A percentile of 50 represents the average or mean weight.
Breastfed babies typically put on weight more slowly than formula fed babies and formula fed infants typically go through a growth spurt and gain weight more quickly after 3 months of age. A value below 50 percent means a baby weighs less than the average. Your baby s weight and height may not follow a centile line exactly.
Growth charts give you a general idea of how your child is growing.
Your baby s weight and height may not follow a centile line exactly. In terms of weight the normal growth rate for a baby is to double in weight by 5 or 6 months and triple it by the time she s 1 year old. Your baby s weight and height may not follow a centile line exactly. A value greater than 50 percent means a baby is above average.